The calorie count was the key information that helped me decode this recipe. I first tried to clone the milkshake using regular ice cream and whole milk. That produced a rich, creamy treat, but it was much thicker than the one from the restaurant. I also noticed ice crystals in the original that weren’t in my version—a clue that lighter ingredients might be used. 

Next, I calculated the total calories of my version and compared the numbers to the nutritional information on the restaurant's website. My version with regular ice cream and whole milk created a 16-ounce milkshake with a diet-busting total of 1,345 calories. Steak 'n Shake's shakes weigh in with less than half that. When I replaced the regular ice cream with "light" ice cream, my new shake dropped to around 600 calories — the same as the Steak 'n Shake original, and the flavor and consistency were perfect!

For my Steak 'n Shake Milk Shake copycat recipes to work best, find a light ice cream, such as Breyer's Light. Also, you can make a thicker milkshake by chilling the blender container and serving glass before you make the shakes.

And there are many more popular drinks you can make at home! Click here to see if I hacked your favorite.

Source: Top Secret Recipes Step-by-Step by Todd Wilbur.

Examining the list of ingredients on a can of this 500-unit Midwestern chain's chili reveals a traditional chili con carne formula with beans as the only vegetable ingredient. There is no tomato sauce in the recipe, as stated by Internet copycats. Nor is there any chocolate or cola in the mix, as some recipes claim. 

Snag this recipe in my book "Top Secret Recipes Step-by Step".